How to calculate multiplication value inside the while loop in PHP?

Question

I have one while loop which displays data from the database. Now I want multiply two values in one row and display the result in the same row, the same way multiply the values

Answer 1

Change the query as

$result= mysql_query("Select id, item, amount, (item * amount)  total
 from table_name");

then in while loop

while($row = mysql_fetch_array($result))
    {
       echo "";
       echo "" . $row['id'] . "";
       echo "" . $row['item'] . "";
       echo "" . $row['amount'] . "";
       echo "" .($row['total']  "";
       echo "";
     }